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What are the most effective authentication controls to reduce insider threats?

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Insider threats are one of the most challenging and costly risks for network security. They can be caused by malicious employees, contractors, vendors, or partners who have authorized access to sensitive data or systems. To prevent or detect insider attacks, you need to implement effective authentication controls that verify the identity and authorization of users and devices. In this article, we will discuss some of the most effective authentication controls to reduce insider threats and how they can enhance your network security posture.

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Islam Zidan

Senior Solutions Architect at Hewlett Packard Enterprise

1 Multi-factor authentication

Multi-factor authentication (MFA) is a security method that requires users to provide two or more pieces of evidence to prove their identity before accessing a network resource. The evidence can be something they know (such as a password or a PIN), something they have (such as a token or a smart card), or something they are (such as a fingerprint or a face scan). MFA can reduce the risk of insider threats by making it harder for attackers to compromise user credentials or impersonate authorized users. MFA can also provide audit trails and alerts for suspicious login attempts or behavior.

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David deLeon

Cybersecurity SDSU | Cybersecurity (ISC)2 | AWS Cloud Practitioner
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I implemented two-factor authentication (2FA) after a client narrowly avoided a phishing scam involving a fake $150K wire transfer sent from a company email instructing a customer to update the wire instructions to an account that didnt belong to them. The incident revealed vulnerabilities in their security system. We quickly educated our client on the importance of 2FA and integrated it across all accounts, combining mobile and biometric verification. Despite initial resistance due to concerns about complexity, our client adapted and appreciated the enhanced security. This proactive response not only improved security measures but also strengthened client trust and confidence and saved them from a $150K loss.

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2 Role-based access control

Role-based access control (RBAC) is a security model that assigns permissions and privileges to users based on their roles and responsibilities within an organization. RBAC can reduce the risk of insider threats by enforcing the principle of least privilege, which means that users only have access to the minimum amount of data and functions they need to perform their tasks. RBAC can also limit the damage caused by insider attacks by restricting the scope and impact of unauthorized actions. RBAC can also simplify the management and monitoring of user access and compliance.

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Islam Zidan

Senior Solutions Architect at Hewlett Packard Enterprise
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When it comes to building robust security access to applications, networks, or even management access, we have to build proper least privilege access with different role based access controls. For example, a user trying to access an application resource should only be assigned to a role with access intended only for this type of user, and exactly the same when it comes to network access, it should be fully controlled with role based access policies. And when it comes to IT admins, for example managing devices they should only get the privilege level needed for their tasks.

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3 Single sign-on

Single sign-on (SSO) is a security feature that allows users to log in to multiple applications or systems with one set of credentials. SSO can reduce the risk of insider threats by eliminating the need for users to remember and manage multiple passwords, which can be easily stolen, guessed, or reused by attackers. SSO can also improve the user experience and productivity by reducing the time and hassle of logging in to different services. SSO can also enhance the security and visibility of user activity and access across multiple platforms and domains.

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4 Network segmentation

Network segmentation is a security practice that divides a network into smaller subnets or zones based on different criteria, such as function, location, or sensitivity. Network segmentation can reduce the risk of insider threats by isolating and protecting critical assets and data from unauthorized or compromised users and devices. Network segmentation can also limit the spread and impact of insider attacks by preventing lateral movement and access escalation within the network. Network segmentation can also improve the performance and efficiency of the network by reducing congestion and traffic.

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Islam Zidan

Senior Solutions Architect at Hewlett Packard Enterprise
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Building network segmentation requires proper security roles and classifications for all endpoints in the network, so the network should be an identity based and profile based so we can have full visibility, and we should control all access based on dynamic policy enforcement. On top of that, we should think zero trust and apply only by applying the least privilege access. Even inside the same network, each user or device should only get access to the needed application and destination only.

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5 Behavioral analytics

Behavioral analytics is a security technique that uses data and algorithms to analyze and understand the normal and abnormal patterns of user and device behavior within a network. Behavioral analytics can reduce the risk of insider threats by detecting and alerting on anomalies, deviations, or outliers that indicate potential malicious or compromised activity. Behavioral analytics can also provide insights and evidence for investigating and responding to insider incidents and incidents. Behavioral analytics can also help identify and mitigate the root causes and vulnerabilities that enable insider threats.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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What are the most effective authentication controls to reduce insider threats?

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2

3

4

5

6

1 Multi-factor authentication

2 Role-based access control

3 Single sign-on

4 Network segmentation

5 Behavioral analytics

6 Here’s what else to consider

Network Security

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What are the most effective authentication controls to reduce insider threats?

1

2

3

4

5

6

1 Multi-factor authentication

2 Role-based access control

3 Single sign-on

4 Network segmentation

5 Behavioral analytics

6 Here’s what else to consider

Network Security

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